In light of ongoing protests and violence in Ferguson, Missouri, some are wondering if there’s a generation gap when it comes to civil rights in America today. We take a look at that and at the movement to put wearable cameras on all police officers.

FROM THIS EPISODE

As protests continue in Ferguson, Missouri, religious and civil leaders like Jesse Jackson and Al Sharpton have been telling protesters “don’t riot… vote.” But how is the message going over with young, frustrated demonstrators? Next, we look at the state of police body cameras -- how widespread are they, and what privacy concerns do they raise? In our weekly TV roundup, we take a look at the massive amount of Simpsons episodes that are going to be at everyone’s fingertips. Then, we look at why the U.S. dropped its efforts to adopt the metric system in the ‘70s. And finally, we look at how unregulated additives have made their way into our food.

Religious and civic leaders like Jesse Jackson and Al Sharpton have been telling protesters in Ferguson, Missouri, “Don’t riot…vote.” But that message doesn’t seem to be going over well with young, frustrated protesters. Is there a generational divide between older African Americans who lived through the civil rights movement and young people today?

The killing of Michael Brown by a police officer has reignited the national debate over whether police should all wear body cameras, designed to record their every move. One California city saw a 60 percent reduction in use-of-force incidents in the first year it deployed the cameras. Los Angeles has been doing small-scale experiments with the cameras, but has yet to roll them out across the board. We look at where else they’re being used and the civil rights questions they raise.

On our weekly TV roundup: TV channel FXX is airing all 552 episodes of The Simpsons in a 288-hour, 12-day marathon that starts on Thursday. Outlander and HBO’s The Leftovers have been renewed. And what are the Creative Arts Emmys, and why did Bill Maher’s show win one?

Back in the 1970s, there was a huge national campaign to convert the U.S. to the metric system. Teachers handed out buttons that said “Take me to your Liter” and middle school students used new rulers and tried to wrap our heads around the simple task of counting by tens. And then, just like that, it all went away. Why?

Do you read the list of all those chemical ingredients on food packages? The FDA tests all that stuff to make sure it’s safe, right? Well, no. The FDA depends on manufacturers to do their own testing. And in many cases, the manufacturers use additives without even informing the FDA. And the agency itself says it doesn’t have enough information about many of these chemicals to judge their safety.